Abstract
| Original language | English |
|---|---|
| Pages (from-to) | 814–816 |
| Number of pages | 3 |
| Journal | Journal of Chemical Education |
| Volume | 89 |
| Issue number | 6 |
| DOIs | |
| Publication status | Published - 2012 |
| Externally published | Yes |
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A kinetic–equilibrium study of a triiodide concentration maximum formed by the persulfate–iodide reaction. / Burgess, Arthur E.; Davidson, John C.
In: Journal of Chemical Education, Vol. 89, No. 6, 2012, p. 814–816.Research output: Contribution to journal › Article
TY - JOUR
T1 - A kinetic–equilibrium study of a triiodide concentration maximum formed by the persulfate–iodide reaction
AU - Burgess, Arthur E.
AU - Davidson, John C.
PY - 2012
Y1 - 2012
N2 - The presence of triiodide, I3–, throughout the lifetime of a persulfate–iodide reaction with persulfate in excess, is controlled by an opposing effect of falling iodide concentration and rising iodine concentration. This brings triiodide to a concentration maximum, [I3–]max, which can be studied by UV–visible spectroscopy using absorbance measurements taken over an extended iodine clock time-scan. Equilibrium and conservation equations can be combined so that, together with [I3–]max, a value of the constant K for the equilibrium established between iodine, iodide, and the triiodide complex ion can be obtained.
AB - The presence of triiodide, I3–, throughout the lifetime of a persulfate–iodide reaction with persulfate in excess, is controlled by an opposing effect of falling iodide concentration and rising iodine concentration. This brings triiodide to a concentration maximum, [I3–]max, which can be studied by UV–visible spectroscopy using absorbance measurements taken over an extended iodine clock time-scan. Equilibrium and conservation equations can be combined so that, together with [I3–]max, a value of the constant K for the equilibrium established between iodine, iodide, and the triiodide complex ion can be obtained.
U2 - 10.1021/ed200055t
DO - 10.1021/ed200055t
M3 - Article
VL - 89
SP - 814
EP - 816
JO - Journal of Chemical Education
JF - Journal of Chemical Education
SN - 0021-9584
IS - 6
ER -